Question

1)30:y=1,2 2)8y·1,7=46,24

Answer 1

$30 \div y = 1.2 \\ y = 30 \div 1.2 \\ \boldsymbol{y = 25}$

$8y \times 1.7 = 46.24 \\ 13.6y = 46.24 \\ y = 46.24 \div 13.6 \\ \boldsymbol{y = 3.4}$

Answer 2

It seems like you've provided two equations, but they are not standard mathematical equations. They appear to be formatted in an unconventional way, and it's unclear what you're asking or trying to solve.

If you could provide more context or clarify what you want to know or solve, I'd be happy to help. Please provide the equations in a standard mathematical format, and I'll do my best to assist you.